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  4. Assertion: The Duma's method is more applicable to nitrogen containing organic compounds than the Kjeldahl’s method. Reason: The Kjeldahl’s method does not give satisfactory results for compounds in which nitrogen is directly linked to oxygen.

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Q. Assertion: The Duma's method is more applicable to nitrogen containing organic compounds than the Kjeldahl’s method.
Reason: The Kjeldahl’s method does not give satisfactory results for compounds in which nitrogen is directly linked to oxygen.

AIIMSAIIMS 1995Organic Chemistry – Some Basic Principles and Techniques

Solution:

Duma's method can be applied in case of all nitrogenous compounds. But Kjeldahl’s method cannot be used in case of nitro, azo and azoxy compounds.